//
// ========================================================================
// Copyright (c) 1995 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// which is available at https://www.apache.org/licenses/LICENSE-2.0.
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//

package org.eclipse.jetty.client;

/**
 * The result of a request / response exchange, containing the {@link Request}, the {@link Response}
 * and eventual failures of either.
 */
public class Result {
    private final Request request;
    private final Throwable requestFailure;
    private final Response response;
    private final Throwable responseFailure;

    public Result(Request request, Response response) {
        this(request, null, response, null);
    }

    public Result(Request request, Response response, Throwable responseFailure) {
        this(request, null, response, responseFailure);
    }

    public Result(Request request, Throwable requestFailure, Response response) {
        this(request, requestFailure, response, null);
    }

    public Result(Request request, Throwable requestFailure, Response response, Throwable responseFailure) {
        this.request = request;
        this.requestFailure = requestFailure;
        this.response = response;
        this.responseFailure = responseFailure;
    }

    public Result(Result result, Throwable responseFailure) {
        this.request = result.request;
        this.requestFailure = result.requestFailure;
        this.response = result.response;
        this.responseFailure = responseFailure;
    }

    /**
     * Get the request object.
     *
     * @return the request object
     */
    public Request getRequest() {
        return request;
    }

    /**
     * Get the request failure, if any.
     *
     * @return the request failure, if any
     */
    public Throwable getRequestFailure() {
        return requestFailure;
    }

    /**
     * Get the response object.
     *
     * @return the response object
     */
    public Response getResponse() {
        return response;
    }

    /**
     * Get the response failure, if any.
     *
     * @return the response failure, if any
     */
    public Throwable getResponseFailure() {
        return responseFailure;
    }

    /**
     * @return whether both the request and the response succeeded
     */
    public boolean isSucceeded() {
        return getFailure() == null;
    }

    /**
     * @return whether either the response or the request failed
     */
    public boolean isFailed() {
        return !isSucceeded();
    }

    /**
     * Get the response failure, if any, otherwise the request failure, if any.
     *
     * @return the response failure, if any, otherwise the request failure, if any
     */
    public Throwable getFailure() {
        return responseFailure != null ? responseFailure : requestFailure;
    }

    @Override
    public String toString() {
        return String.format("%s[%s > %s] %s",
                Result.class.getSimpleName(),
                request,
                response,
                getFailure());
    }
}
